The EL731 is a microprocessor-based AC/DC Sensitive Earth-Leakage Relay that offers complete coverage for all frequenciesfrom 0-6,000 Hz. Two CT’s are required for the entire frequencyrange, or one CT can be used for only low-or high-frequencydetection.

The SE-703 is a microprocessor-based ground-fault relay for resistance and solidly-earthed systems. It offers sensitiveground-fault detection as low as 25 mA and can be used onsystems with significant harmonic content. The SE-703 providesfeeder-level protection or individual-load protection.

To provide application and product support for the Littelfuseproduct range, Startco Pty Ltd has a complete range of AustralianMade Earth Fault and Phase Current Transformers, manufacturedby Stemar Electrical Products.